[Resolved] lscgid: execve():/home/user/public_html/cgi-bin/search.cgi: No such file or directory

[bh-tech]

Migrating to CentOS 7, and currently have a test server set-up with our website on it.

Everything is working except for our Search feature which uses CGI.

Before enabling LiteSpeed, Apache returned a 500 Internal Server Error, and error_log had:

End of script output before headers: search.cgi

With LiteSpeed enabled, the URL now returns:

lscgid: execve():/home/user/public_html/cgi-bin/search.cgi: No such file or directory

There is nothing in error_log.

Let me know what other information you need to help me troubleshoot.

CentOS 7, CloudLinux and LiteSpeed

 

[mistwang]

search.cgi cannot found the script interpreter.
whatever command is set at the first line of the script

#!....

 

[bh-tech]

Sorry I don't understand what you are saying.

We run the exact some script in the same place on our current server and everything is fine.

 

[mistwang]

just open the script with a text editor.

 

[bh-tech]

The script is from an existing piece of software - not something I wrote myself.

When I open the file, it's encoded in someway so I can't edit it.

 

[mistwang]

then you try to run it from command line, and strace it.

strace /home/user/public_html/cgi-bin/search.cgi

to find out what it is looking for.

 

[bh-tech]

Output:

execve("/home/user/public_html/cgi-bin/search.cgi", ["/home/user/public_html/cgi-b"...], [/* 23 vars */]) = -1 ENOENT (No such file or directory)
write(2, "strace: exec: No such file or di"..., 40strace: exec: No such file or directory
) = 40
exit_group(1)                           = ?
+++ exited with 1 +++

 

[mistwang]

You need to use the real path of the search.cgi script.

 

[bh-tech]

I replaced 'user' with our actual username - is that what you mean?

I'm just changing it in the posts for privacy

 

[mistwang]

does the file exist? have you make it executable with
chmod a+x search.cgi ?

 

[bh-tech]

Yeah it definitely exists. I've run that command, and it's set as 755

 

[mistwang]

I do not know what is going on, strace says that file does not exist.

execve("/home/user/public_html/cgi-bin/search.cgi", ["/home/user/public_html/cgi-b"...], [/* 23 vars */]) = -1 ENOENT (No such file or directory)

you say you used the real path. you can do a

ls -l /home/user/public_html/cgi-bin/search.cgi

before running strace again to make sure.

once you make it run without giving "No such file or directory" error, it will work with the server.

 

[bh-tech]

I will try and contact the developer and see if they know what the issue is.

 

[bh-tech]

SOLVED

The script was written for a 32bit architecture, but the server only had the 64bit libraries installed. After installing the 32bit libraries the script is now running correctly.

Thanks for your speedy replies mistwang - you led me down the right path to find more information.

 

[mistwang]

Glad it is solved. I thought that at least strace should show which file is needed.